Grid forming services are indeed paid for, according to this very same article:
> Power plants "should have controlled voltage and, moreover, many of them were economically remunerated to do so. They did not absorb all the reactive power that was expected," Aagesen said.
Why not: keep most weight off the arm by using a fan/compressor installed in the base and routing a conduit to the arm? Then it will only have to move the conduit, not the heavy motor.
> Power plants "should have controlled voltage and, moreover, many of them were economically remunerated to do so. They did not absorb all the reactive power that was expected," Aagesen said.